Laboratory instrument



FIG. 1 is a right side of view of a laboratory instrument in accordance with the present design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a back view thereof;

FIG. 7 is a left side elevation view thereof;

FIG. 8 is a right side perspective view thereof;

FIG. 9 is a right and back perspective view thereof; and,

FIG. 10 is a left and back perspective view thereof.

The broken lines illustrate portions of the laboratory instrument that form no part of the claimed design. 

CLAIM The ornamental design for a laboratory instrument, as shown and described. 